8PSK, or 8 Phase Shift Keying, is a modulation method. It generally involves variations within a specific waveform so the said signal can produce data.
In 8PSK, the modulation of data is carried out to the bits directly from the output produced by the physical channel mapping procedure.
Since 8PSK is considered a phase modulation algorithm, this technique can be used to calculate certain waveform measures and find a particular value.
8PSK is an extension of QPSK. The main difference between the two is that the former uses 8 states whereas the latter uses 4. Another type of PSK related to 8PSK is 16PSK which, as its name suggests, uses 16 states.
Given the above characteristics, 8PSK tends to slightly use more DSP (Digital Signal Processor) cycles than other PSKs. Nevertheless, 8PSK is capable of transferring a greater amount of data with the same bandwidth.
In contrast to the other types of PSKs which can process only two bits per symbol, 8PSK can process 3 bits per symbol. This is made possible by 8PSK’s eight states. In addition, 8PSK has a less amount of tolerance to link degradation than other PSKs.
8PSK is used in a number of technologies. Antennas of devices such as radios and other telecommunication system hardwares are created using the 8PSK modulation technique. New models of modems also make use of 8PSK. It allows the said type of hardware to send and receive more data in less time. Aside from these, wireless LAN systems also use of 8PSK devices.